CN212713381U

CN212713381U - Explosion-proof pressure release device

Info

Publication number: CN212713381U
Application number: CN202021160553.0U
Authority: CN
Inventors: 刘轩萌; 刘恒明
Original assignee: Shandong Xinke Environmental Science Research Institute Co ltd
Current assignee: Shandong Xinke Environmental Science Research Institute Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-16
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses an explosion-proof pressure release device, which mainly relates to the technical field of gasification furnaces; the exhaust pipe comprises a buffer cylinder body and an exhaust pipe, wherein an outer cylinder body with a sealed bottom end is arranged in the buffer cylinder body, liquid is filled in the outer cylinder body, the bottom end of the exhaust pipe is inserted into the liquid in the outer cylinder body, a cross flow groove is reserved between the bottom end of the exhaust pipe and the bottom surface in the outer cylinder body, an inner cylinder body is arranged in the exhaust pipe, the bottom end of the inner cylinder body is fixed on the bottom surface in the outer cylinder body, a third annular cavity is reserved between the outer wall of the inner cylinder body and the inner wall of the exhaust pipe, and a cross flow hole communicated with the third annular cavity is arranged on the outer wall of; the utility model discloses simple structure, reliability are high, rely on the static pressure of liquid to realize pressure release completely to realize sealed fast after pressure release finishes, can avoid the furnace body to damage because of the superpressure, the quality of living beings gas can be guaranteed to the air entering furnace body when can preventing the pressure release.

Description

Explosion-proof pressure release device

Technical Field

The utility model relates to a gasifier technical field specifically is an explosion-proof pressure release.

Background

The biomass pyrolysis gasification furnace is a key device for preparing biomass pyrolysis gas, the gasification furnace is easy to have over-high air pressure in the furnace body in the biomass pyrolysis process, in the prior art, in order to prevent the overpressure of the gasification furnace body, an overpressure automatic release device which is started by external energy sources such as hydraulic pressure, pneumatic pressure or electric pressure and the like is arranged on the furnace body, the overpressure gas can be discharged when the gasification furnace has overpressure, but the pressure release device is started by the aid of external energy power, and when the external energy power is lost or not, the pressure release cannot be carried out, so that the overpressure failure of the gasification furnace body is easy to cause; in addition, when the pressure release device releases the pressure and returns to the base, air is easy to enter the gasification furnace through the pressure release device, so that the quality of the biomass fuel gas is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that exists among the prior art, provide an explosion-proof pressure release device for biomass gasification producer, simple structure, reliability are high, rely on the static pressure of liquid to realize pressure release completely to realize sealed fast after pressure release finishes, can avoid the furnace body to damage because of the superpressure, air gets into the furnace body when can preventing the pressure release, can guarantee the quality of living beings gas.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:

an explosion-proof pressure release device comprises a buffer cylinder body and an exhaust pipe arranged on a furnace body, wherein an outer cylinder body with a closed bottom end is arranged in the buffer cylinder body, a first annular cavity is reserved between the outer wall of the outer cylinder and the inner wall of the buffer cylinder, the exhaust pipe and the outer cylinder are fixedly connected with the buffer cylinder, the outer cylinder is filled with liquid, the bottom end of the exhaust pipe is inserted into the liquid in the outer cylinder, a cross flow groove is reserved between the bottom end of the exhaust pipe and the bottom surface in the outer cylinder, a second annular cavity is reserved between the outer wall of the exhaust pipe and the inner wall of the outer cylinder body, the exhaust pipe is communicated with the second annular cavity through a serial flow groove, an inner cylinder body is arranged in the exhaust pipe, the bottom end of the inner cylinder body is fixed on the bottom surface in the outer cylinder body, and a third annular cavity is reserved between the outer wall of the inner cylinder and the inner wall of the exhaust pipe, and a serial flow hole communicated with the third annular cavity is formed in the outer wall of the bottom of the inner cylinder.

Preferably, an upper support is arranged at the upper part in the buffer cylinder body, and the exhaust pipe is fixed on the buffer cylinder body through the upper support.

Preferably, the bottom end of the buffering cylinder body is closed, a lower support is arranged on the bottom surface in the buffering cylinder body, the outer cylinder body is fixed on the buffering cylinder body through the lower support, and a drain pipe communicated with the buffering cylinder body is arranged at the bottom of the buffering cylinder body.

Preferably, the top of the inner cylinder body is provided with a top plate, and the top plate is provided with a communicating hole.

Preferably, the liquid is water.

Contrast prior art, the beneficial effects of the utility model reside in that:

the bottom end of the exhaust pipe of the utility model is inserted into the liquid in the outer cylinder body, the exhaust pipe is sealed by the liquid, when the pressure in the furnace body is over-pressure, the gas in the furnace body extrudes the liquid in the third annular cavity, the liquid in the third annular cavity is pressed into the second annular cavity through the series flow groove, the liquid in the second annular cavity flows into the first annular cavity from the upper end of the second annular cavity, and then the liquid is discharged out of the buffer cylinder body to release the pressure; after the pressure is released, the liquid in the inner cylinder body flows into the third annular cavity and the second annular cavity through the series flow holes to complete the sealing of the exhaust pipe; the utility model discloses simple structure, reliability are high, rely on the static pressure of liquid to realize pressure release completely to realize sealed fast after pressure release finishes, can avoid the furnace body to damage because of the superpressure, the quality of living beings gas can be guaranteed to the air entering furnace body when can preventing the pressure release.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

fig. 2 is a sectional view a-a of fig. 1.

The reference numbers in the drawings: 1. a buffer cylinder; 2. an exhaust pipe; 3. an outer cylinder; 4. a first annular cavity; 5. a serial flow groove; 6. a second annular cavity; 7. an inner cylinder; 8. a third annular cavity; 9. a serial flow hole; 10. an upper bracket; 11. a lower bracket; 12. a drain pipe; 13. a top plate; 14. and a communicating hole.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

Example (b): as shown in attached figures 1-2, the utility model relates to an explosion-proof pressure release device for a biomass gasification producer, which comprises a buffer cylinder body 1 and an exhaust pipe 2 arranged on a producer body, wherein a flange plate is welded at one end of the exhaust pipe 2. An outer barrel 3 with a closed bottom end is arranged in the buffer barrel 1, the outer diameter of the outer barrel 3 is smaller than the inner diameter of the buffer barrel 1, and a space between the outer wall of the outer barrel 3 and the inner wall of the buffer barrel 1 is a first annular cavity 4. Blast pipe 2, outer barrel 3 all with 1 fixed connection of buffering barrel, blast pipe 2, outer barrel 3 all can be fixed on the inner wall of buffering barrel 1 through the support, and is preferred, upper portion in the buffering barrel 1 is equipped with upper bracket 10, and upper bracket 10 includes six spliced poles, and six spliced poles are all along the radial arrangement of buffering barrel 1, and evenly arrange along the circumference of blast pipe 2, and the one end welding of spliced pole is on the outer wall of blast pipe 2, and the other end welding is on the inner wall of buffering barrel 1, through the clearance between two adjacent spliced poles, can add liquid in the barrel 3 outward, both conveniently add liquid in the barrel 3 outward, can guarantee the fastness between buffering barrel 1 and the blast pipe 2 again. Further, the buffering cylinder 1 is a cylinder with a closed bottom end, a lower support 11 is arranged on the bottom surface in the buffering cylinder 1, the lower support 11 is four mutually independent supports, the supports and the axis of the buffering cylinder 1 are arranged on the bottom surface in the buffering cylinder 1 as a central array, one end of each support is welded on the bottom surface in the buffering cylinder 1, the other end of each support is welded on the bottom surface of the outer cylinder 3, a drain pipe 12 communicated with the buffering cylinder 1 is welded at the bottom of the buffering cylinder 1, stable support can be provided for the outer cylinder 3 during pressure relief, and firm connection between the outer cylinder 3 and the buffering cylinder 1 is guaranteed. The outer cylinder body 3 contains liquid, preferably, the liquid can be directly water in order to reduce cost. The bottom of blast pipe 2 inserts in the liquid in outer barrel 3, there is certain distance between 2 bottoms of blast pipe and the bottom surface in the outer barrel 3, the external diameter of blast pipe 2 is less than the internal diameter of outer barrel 3 for series flow groove 5, the space between the outer wall of blast pipe 2 and the inner wall of outer barrel 3 is second annular cavity 6, blast pipe 2 passes through series flow groove 5 and second annular cavity 6 intercommunication. The exhaust pipe is characterized in that an inner cylinder body 7 is arranged in the exhaust pipe 2, the bottom end of the inner cylinder body 7 is welded on the bottom surface in the outer cylinder body 3, the outer diameter of the inner cylinder body 7 is smaller than the inner diameter of the exhaust pipe 2, the space between the outer wall of the inner cylinder body 7 and the inner wall of the exhaust pipe 2 is a third annular cavity 8, and a streaming hole 9 communicated with the third annular cavity 8 is formed in the outer wall of the bottom of the inner cylinder body 7. The axial lines of the buffer cylinder 1, the exhaust pipe 2, the outer cylinder 3 and the inner cylinder 7 may or may not coincide with each other, and preferably coincide with each other. The utility model discloses a bottom of blast pipe 2 inserts in the liquid in outer barrel 3, utilizes the liquid in outer barrel 3 to seal blast pipe 2, and when the internal pressure superpressure of furnace, the liquid in third annular cavity 8 is extruded to the gas in the furnace, impresses the liquid in third annular cavity 8 in second annular cavity 6 through series flow groove 5, and the liquid of 6 in the second annular cavity flows into first annular cavity 4 from the upper end of second annular cavity 6, then outwards discharges buffering barrel 1, carries out pressure release; after the pressure is released, the liquid in the inner cylinder 7 flows into the third annular cavity 8 and the second annular cavity 6 through the series flow hole 9, and the exhaust pipe 2 is sealed; preferably, in order to prevent the liquid in the inner cylinder 7 from being pressed out during pressure relief, a top plate 13 is welded at the top of the inner cylinder 7, a communication hole 14 is formed in the middle of the top plate 13, the communication hole 14 is used for ensuring that the pressure in the inner cylinder 7 is the same as that in the exhaust pipe 2, when the gas in the exhaust pipe 2 is in overpressure, most of the overpressure gas is discharged outwards through the third annular cavity 8, a small part of the overpressure gas enters the inner cylinder 7 through the communication hole 14, the pressure on the liquid in the inner cylinder 7 is small, and the aperture of the series flow hole 9 is far smaller than that of the series flow groove 5, so that the liquid in the inner cylinder 7 can be prevented from being pressed out, and the sealing effect of the exhaust pipe 2.

The utility model discloses simple structure, reliability are high, rely on the static pressure of liquid to realize pressure release completely to realize sealed fast after pressure release finishes, can avoid the furnace body to damage because of the superpressure, the quality of living beings gas can be guaranteed to the air entering furnace body when can preventing the pressure release.

Claims

1. An explosion-proof pressure relief device characterized by: the furnace comprises a buffer cylinder body (1) and an exhaust pipe (2) arranged on a furnace body, wherein an outer cylinder body (3) with a closed bottom end is arranged in the buffer cylinder body (1), a first annular cavity (4) is reserved between the outer wall of the outer cylinder body (3) and the inner wall of the buffer cylinder body (1), the exhaust pipe (2) and the outer cylinder body (3) are both fixedly connected with the buffer cylinder body (1), liquid is contained in the outer cylinder body (3), the bottom end of the exhaust pipe (2) is inserted into the liquid in the outer cylinder body (3), a cross flow groove (5) is reserved between the bottom end of the exhaust pipe (2) and the inner bottom surface in the outer cylinder body (3), a second annular cavity (6) is reserved between the outer wall of the exhaust pipe (2) and the inner wall of the outer cylinder body (3), the exhaust pipe (2) is communicated with the second annular cavity (6) through the cross flow groove (5), an inner cylinder body (7) is arranged in, the bottom mounting of interior barrel (7) is on the bottom surface in outer barrel (3) leave third annular cavity (8) between the outer wall of interior barrel (7) and the inner wall of blast pipe (2), be equipped with on the outer wall of the bottom of interior barrel (7) and the cluster orifice (9) of third annular cavity (8) intercommunication.

2. An explosion proof pressure relief device as defined in claim 1, wherein: an upper support (10) is arranged on the upper portion in the buffering cylinder body (1), and the exhaust pipe (2) is fixed on the buffering cylinder body (1) through the upper support (10).

3. An explosion proof pressure relief device as defined in claim 1, wherein: the bottom of buffering barrel (1) seals, be equipped with lower carriage (11) on the bottom surface in buffering barrel (1), outer barrel (3) are fixed on buffering barrel (1) through lower carriage (11), the bottom of buffering barrel (1) is equipped with drain pipe (12) with buffering barrel (1) intercommunication.

4. An explosion proof pressure relief device as defined in claim 1, wherein: the top of interior barrel (7) is equipped with roof (13), be equipped with intercommunicating pore (14) on roof (13).

5. An explosion proof pressure relief device as defined in claim 1, wherein: the liquid is water.